Pumps – Motor driven – Electric or magnetic motor
Patent
1989-01-25
1992-10-13
Smith, Leonard E.
Pumps
Motor driven
Electric or magnetic motor
92140, 417533, 417536, F04B 102, F04B 1700
Patent
active
051545861
ABSTRACT:
A concentrate supply assembly for a post-mix beverage dispenser includes a plurality of containers for concentrate with discharge openings through which concentrate may flow. A plurality of conduits are coupled to the discharge openings and are in fluid communication with concentrate disposed within the containers. A multi-channel linear pump is provided with a pump body or bodies, including bores disposed within the pump bodies, pistons operatively mounted within the bores for reciprocation and piston shafts connected to the pistons. An A.C. synchronous motor is connected to the piston shafts for imparting constant-speed reciprocal motion to the piston shafts and to the pistons disposed within the bores. Inlet ports are in fluid communication with the conduits and bores for supplying concentrate thereto during a reciprocal motion of the pistons in a first direction. Outlet ports are in fluid communication with the bores for discharging concentrate from the bores during a reciprocal motion of the pistons in a reverse direction. A ball joint connection is provided between the piston shafts and the motor for enabling accurate positioning of the piston connected to the piston shaft within the bore.
REFERENCES:
patent: 2943782 (1960-07-01), McGregor
patent: 3062434 (1962-11-01), Elwell
patent: 3263513 (1966-08-01), Girodin
patent: 3319874 (1967-05-01), Welsh et al.
patent: 3612729 (1971-10-01), Commarmot
patent: 3656874 (1972-04-01), Pellizetti
patent: 4708603 (1987-11-01), Kubo
Smith Leonard E.
The Coca-Cola Company
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